The Biden administration says the Rapid Support Forces rebel group in Sudan is committing genocide and announced new sanctions for the group's leader and affiliated companies. It's the latest escalation for Sudan which is facing the worst humanitarian crisis in the world right now. Amna Nawaz discussed more with Beth Van Schaack, U.S. ambassador-at-large for global criminal justice. PBS News is supported by - https://www.pbs.org/newshour/about/funders